How would you write an equation that would allow someone to find the value of r?
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The probability of first number cube shows a five and the other number cube shows an even number is .
Solution:
Two cubes are rolled sequentially.
Sample space when two dies are rolled
Number of sample space = 36
Even numbers getting when two cubes rolled are 2, 4, 6.
First number cube shows a five and the other number cube shows an even number = {(5, 2), (5, 4), (5 6)}
Number of first number cube shows a five and the other number cube shows an even number = 3
Probability of first number cube shows a five and the other number cube shows an even number
Hence, the probability of first number cube shows a five and the other number cube shows an even number is .